1975 GL1000 project, first Goldwing

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robin1731
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Re: 1975 GL1000 project, first Goldwing

#136

Post by robin1731 »

brewer013 wrote:
ericheath wrote:Make your own for cheap. Posts on Shoptalk.

I saw that on the shop talk, I saved it but haven't gone back to read it.

Anything special to the GL that I should look at for the throttle binding? The twist grip is pretty tight and doesn't bounce back. Do the carbs snap back if the cable is removed? That pinpoints that issue. A couple times when I was just running the motor, it slowly started to increase RPM and I had to jiggle the linkage to get it to stop. That is usually a sync issue or vacuum leak. The cables and handle are new and oiled. When I cleaned the carbs, I didn't pull the butterflys out, just separated the carbs.You don't usually want to do that anyway. Can be tricky getting them back in correctly.
Follow what Eric said. Then report back.
These type of issues are why pro builders charge what we do. ;) anim-cheers1

.
1976 Goldwing Super Sport
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
brewer013
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Re: 1975 GL1000 project, first Goldwing

#137

Post by brewer013 »

Thanks for the plethora of items to check. I have a lot to check tonight.

A few more things to note,

I did not do a bench sync, just eyeballed the operation of the plates after putting them back together so I'll probably start with that. I have not done a sync on the bike either as I haven't done the strobe timing yet. Most of the last week, I've been busy with leaks and overheating. I don't know if the order of those checks matter on the GL as I haven't looked it up yet but the other bikes I have worked on said to do timing then sync.

I believe the idle is correct and the engine starts normally. It's the return of the throttle after rolling it that seems to be the issue. I can manually roll it back down but I noticed last night that it sometimes doesn't go all the way back to idle, (sticks at about 2k) unless I give a little pull in the right side linkage. I noticed the linkages have spring loaded mount points which led me to ask if there maybe something special I'm not familiar with.

In any case, I have a lot to work with. Thanks again for the tips and I'll report back tonight.
1975 Honda Goldwing GL1000 (café project, started Oct 2018)
1978 Honda CB400T Hawk II (son's project)
1980 Honda CB750C Café
1986 Honda Goldwing GL1200 stock dresser
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ericheath
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Re: 1975 GL1000 project, first Goldwing

#138

Post by ericheath »

Strobe timing isn’t necessary. Just static timing is as good as you’ll get. If you haven’t done that, remove the points plate while your there and ensure the advance mechanism isn’t stuck and tgat it moves freely.

As for your springs, there are good pics of a 75 in Shoptalk on Octane’s carb rebuild.

As best as I remember, my first bike did the same and I stuck a big spring on it for a while to help get them back to the stops. Not the right thing to do, but I did lots of wrong things to that set of carbs.

If you completely disassembled the carbs, they are fussy to get put back with everything properly aligned, the alignment of the throttle axles is important. It’s also easy to bend the synchronization tabs. And it’s easy to mess up the order of the springs and washers. Detailed pics on Octane’s post. They should be visible enough to check without removing the carbs.

Hang in there, take your time and get it right. You’ll be happier with the bike.
Whatever I suggest here should be given ample time for a moderator to delicately correct. I apologize in advance.
77 WING, 1200 engine with 77 heads, cams, gl1100 foot pegs, Magna V65 front end, 764A carbs, [-gone Suzuki M109 monoshock--, replaced with gl1100 shocks] gl 1200 swing arm, gl1500 final drive, wheel and rear brakes Valkyrie seat, Meanstreak tank, Sportster pipes, Power Arc ignition off crank.
77 Wing. black
83 Wing, in pieces
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Jonesz
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Re: 1975 GL1000 project, first Goldwing

#139

Post by Jonesz »

brewer013 What paint and color did you use on your engine (the darker gray)? really like the look you got with it.
Jonesz

1983 GL1100 Aspencade named "Freki" currently undergoing change to a standard. Sold
1999 Valkyrie CT 1500 goes by the moniker "Valerie"
1978 Gl1000 "Loki" new project going to be a Cafe Convertible
1979 Suzuki GS850. Sold
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Re: 1975 GL1000 project, first Goldwing

#140

Post by brewer013 »

Jonesz wrote:brewer013 What paint and color did you use on your engine (the darker gray)? really like the look you got with it.
Thanks. To prime I used Self Etching Primer DAP1690. The main color is Cast Coat Iron DE1651 and the black accents are Ford Semi-gloss Black DE1635. These are all Dupli-color paints and the cast iron and black are ceramic engine enamel.
1975 Honda Goldwing GL1000 (café project, started Oct 2018)
1978 Honda CB400T Hawk II (son's project)
1980 Honda CB750C Café
1986 Honda Goldwing GL1200 stock dresser
brewer013
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Re: 1975 GL1000 project, first Goldwing

#141

Post by brewer013 »

So I'm finally out here working on the throttle again. I'm pretty sure its somewhere in the cables. They are new. I disconnected them from the carbs and the carbs snap back on their own. I've taken the cables out completely and made sure they are oiled. Even isolated from the routing in the bike, they still bind.
1975 Honda Goldwing GL1000 (café project, started Oct 2018)
1978 Honda CB400T Hawk II (son's project)
1980 Honda CB750C Café
1986 Honda Goldwing GL1200 stock dresser
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robin1731
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Re: 1975 GL1000 project, first Goldwing

#142

Post by robin1731 »

Hook the pull cable up and see if it binds by itself. That isolates the two cables. Could be in the routing of the cables.

.
1976 Goldwing Super Sport
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
brewer013
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Re: 1975 GL1000 project, first Goldwing

#143

Post by brewer013 »

robin1731 wrote:Hook the pull cable up and see if it binds by itself. That isolates the two cables. Could be in the routing of the cables.

.
I'll give that a try next. I have the cables hanging outside of the frame so I know that they are not kinked up or bent and it makes no difference how I move them or position them. It feels tight and there's a lag when I first twist to get the RPMs up
1975 Honda Goldwing GL1000 (café project, started Oct 2018)
1978 Honda CB400T Hawk II (son's project)
1980 Honda CB750C Café
1986 Honda Goldwing GL1200 stock dresser
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robin1731
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Re: 1975 GL1000 project, first Goldwing

#144

Post by robin1731 »

brewer013 wrote:
robin1731 wrote:Hook the pull cable up and see if it binds by itself. That isolates the two cables. Could be in the routing of the cables.

.
I'll give that a try next. I have the cables hanging outside of the frame so I know that they are not kinked up or bent and it makes no difference how I move them or position them. It feels tight and there's a lag when I first twist to get the RPMs up

That sounds like a lean condition. Slight hesitation on acceleration/throttle tip in, and slow to return to idle. Could be carb adjustment or vacuum leak.

.
1976 Goldwing Super Sport
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
brewer013
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Re: 1975 GL1000 project, first Goldwing

#145

Post by brewer013 »

robin1731 wrote: That sounds like a lean condition. Slight hesitation on acceleration/throttle tip in, and slow to return to idle. Could be carb adjustment or vacuum leak.

.
I understand that too but there is no return to idle unless I physically twist the grip back. With no cables on the carbs, they snap back perfectly. That's why I'm chasing the mechanical side before adjusting the carbs.
1975 Honda Goldwing GL1000 (café project, started Oct 2018)
1978 Honda CB400T Hawk II (son's project)
1980 Honda CB750C Café
1986 Honda Goldwing GL1200 stock dresser
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Jonesz
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Re: 1975 GL1000 project, first Goldwing

#146

Post by Jonesz »

Thanks. To prime I used Self Etching Primer DAP1690. The main color is Cast Coat Iron DE1651 and the black accents are Ford Semi-gloss Black DE1635. These are all Dupli-color paints and the cast iron and black are ceramic engine enamel.[/quote]

Thanks for the info and after I posted my ? also wondered about the self etching primer.
Jonesz

1983 GL1100 Aspencade named "Freki" currently undergoing change to a standard. Sold
1999 Valkyrie CT 1500 goes by the moniker "Valerie"
1978 Gl1000 "Loki" new project going to be a Cafe Convertible
1979 Suzuki GS850. Sold
brewer013
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Re: 1975 GL1000 project, first Goldwing

#147

Post by brewer013 »

Jonesz wrote:Thanks for the info and after I posted my ? also wondered about the self etching primer.
I think it the best stuff around to use for anything you're going to spray paint.
1975 Honda Goldwing GL1000 (café project, started Oct 2018)
1978 Honda CB400T Hawk II (son's project)
1980 Honda CB750C Café
1986 Honda Goldwing GL1200 stock dresser
brewer013
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Posts: 146
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Re: 1975 GL1000 project, first Goldwing

#148

Post by brewer013 »

robin1731 wrote:Hook the pull cable up and see if it binds by itself. That isolates the two cables. Could be in the routing of the cables.

.
Same issue with pull cable only. I feel like it's something dumb that I'm missing. The cable is brand new and oiled, twist grip is new and greased. Carbs alone will snap back easily. Cables and twist grip move freely and easily when disconnected from the carbs. I have the cables temporarily routed outside the bike to eliminate routing issues.
1975 Honda Goldwing GL1000 (café project, started Oct 2018)
1978 Honda CB400T Hawk II (son's project)
1980 Honda CB750C Café
1986 Honda Goldwing GL1200 stock dresser
brewer013
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Re: 1975 GL1000 project, first Goldwing

#149

Post by brewer013 »

I disconnected the linkage arms and bank 1 and 3 are definitely tighter than 2 and 4 so I'm going to go back through everything suggested above and see why
1975 Honda Goldwing GL1000 (café project, started Oct 2018)
1978 Honda CB400T Hawk II (son's project)
1980 Honda CB750C Café
1986 Honda Goldwing GL1200 stock dresser
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robin1731
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Re: 1975 GL1000 project, first Goldwing

#150

Post by robin1731 »

Do the carbs snap back to idle with cables removed and engine running?

And I have had carbs where one piece of linkage was bent and caused an issue similar to this.
1976 Goldwing Super Sport
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
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